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Add support for hot-plugging IBM VFIO-AP devices

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Add ExecuteAPVFIOMediatedDeviceAdd to qmp.go, which executes a hotplug
for an IBM Adjunct processor (AP) VFIO device (see also
https://www.kernel.org/doc/html/latest/s390/vfio-ap.html )
Also includes the respective unittest and adds the VfioAP DeviceDriver
constant to qemu.go.

Pushing again due to incidental CI failure

Fixes: #133

Signed-off-by: Jakob-Naucke <jakob.naucke@ibm.com>
Reviewed-by: alicefr <afrosi@redhat.com>
This commit is contained in:
Jakob-Naucke
2020-08-06 14:39:26 +02:00
parent 4c33e5e823
commit 39c372a201
3 changed files with 29 additions and 0 deletions
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9
qemu/qmp.go
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@@ -1217,6 +1217,15 @@ func (q *QMP) ExecutePCIVFIOMediatedDeviceAdd(ctx context.Context, devID, sysfsd
return q.executeCommand(ctx, "device_add", args, nil)
}
// ExecuteAPVFIOMediatedDeviceAdd adds a VFIO mediated AP device to a QEMU instance using the device_add command.
func (q *QMP) ExecuteAPVFIOMediatedDeviceAdd(ctx context.Context, sysfsdev string) error {
args := map[string]interface{}{
"driver": VfioAP,
"sysfsdev": sysfsdev,
}
return q.executeCommand(ctx, "device_add", args, nil)
}
// isSocketIDSupported returns if the cpu driver supports the socket id option
func isSocketIDSupported(driver string) bool {
if driver == "host-s390x-cpu" || driver == "host-powerpc64-cpu" {